Giardia lamblia infection in patients with irritable bowel syndrome and dyspepsia: A prospective study

Table 1 Characteristics of 9 patients with G. lamblia infection among the 137 complaining of symptoms of irritable bowel syndrome (IBS) and/or dyspepsia (FD: functional dyspepsia; OD: organic dyspepsia) or displaying lactose intolerance (LI)

Patient	Age (yr)	Sex	Symptoms	IBS	LI	FD	OD
1	61	M	Abdominal pain, constipation/diarrhea	+	-	+	-
2	38	F	Abdominal pain, diarrhea, pirosis	+	+	-	+
3	33	M	Abdominal pain, diarrhea	+	-	-	-
4	26	F	Abdominal pain and bloating, constipation	+	+	-	-
5	48	M	Abdominal pain, diarrhea	+	+	-	-
6	47	M	Abdominal pain, diarrhea, pirosis	+	-	+	-
7	37	M	Abdominal pain and bloating, diarrhea	+	-	-	+
8	26	M	Abdominal pain and bloating, diarrhea	+	+	+	-
9	39	M	Abdominal pain, diarrhea	+	-	-	-

Table 2 Comparison of the laboratory tests for G. lamblia infection in the study population (n = 137)

Patient	Age (yr)	Sex	Direct search induodenal biopsy	Stool sampleexamination	Histology ofduodenal biopsy
1	61	M	+	+	-
2	38	F	+	+	-
3	33	M	+	+	+
4	26	F	+	+	-
5	48	M	+	+	-
6	47	M	+	+	-
7	37	M	+	+	+
8	26	M	+	+	-
9	39	M	+	+	-

In the remaining 128 patients, all the three tests were negative for the presence of G lamblia.